Devan (R. Mahadevan) (8 September 1913 – 5 May 1958) was a 20th-century Indian writer who wrote in Tamil, known for his witty and humorous stories.
He worked as a school teacher for a year, before joining the popular Tamil weekly magazine, Ananda Vikatan in 1933.
Devan's first foray into the world of writing was through the humorous short story "Mister Rajamani", written when he was in his twenties.
He was a very popular writer and stories abound of how, when a new issue of Ananda Vikatan came out, everyone in the family would fight to get hold of the copy first.
More recently, some of his works like Thuppariyum Sambu, Sriman Sudharsanam and Mister Vedhantham were made into television serials also.